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  1. 15 févr. 2004 · If you can post your source and dsn file we'll have a look. Typically this happens when you externally wire a crystal etc. - this introduces an extremely high speed oscillator which bottlenecks the simulation and is completely superfluous anyway. Clock frequency is specified as a property of the microcontroller device.

  2. 20 juil. 2012 · You always need the 2 metrics (Test Coverage for SA and TC for Transition faults). TF patterns detect slow-to-rise and slow-to-fall faults while SA pattern detect stuck and open faults. @speed fault testting require 1 launch and 1 captur cyclee to be tested. For @stuckat, 1 capture cycle is often sufficient to detect a fault (unless there are ...

  3. 28 déc. 2011 · 37,988. You need a high speed op amp with some current output capability (at least 100 mA). You also need to protect the varactor from inadvertent burn-out if forward biased. So there are two basic circuits: The single ended rail-to-rail op amp can not blow out the diode with a forward bias, so you can hook it up directly.

  4. 3 nov. 2018 · Propagation speed is light speed/sqrt(Er,eff). Your assumed 0.15 m/ns (0.5 light speed) is roughly correct for embedded microstrip on FR4, microstrip has typically higher speed (Er,eff < 4), stripline lower speed (Er,eff > 4). You can use Saturn Toolkit, tab Conductor Impedance to calculate propagation speed for your actual transmission line geometry.

  5. 14 mars 2006 · 1,298. Activity points. 7,491. Re: SPEED GRADE. The lower the -X the faster the FPGA. The speed is specified in terms of the tpd (pin-to-pin delay) parameter in the FPGA datasheet. This affects the maximum operating frequency of your design in that particular FPGA. Jun 26, 2006. #3.

  6. hspice speed up simulation Besides fast options, autostop can help you as well. In addition, increase step for transient, AC,DC will help when too small is not necessary. Of course employing multi-cpu and use multi-thread job can make simulation fast dramatically.

  7. 31 janv. 2024 · I won't give the exact speed because it is a function of the load capacity and even though I have a 16-bit LRC it may not be easy to measure accurately. Let me put it this way, if I compare the slope of the rising edge of the STM32F3 and the output of the 74HC04 at 3.3V, they are similar, with a 5.5V supply (74HC), the slope of the 74 is already a bit steeper.Compared purely optically on the ...

  8. 20 mars 2024 · 300,821. If "DC fan motor" is a usual electronically commutated brushless DC type, consider that it may be not suited for direct PWM operation. They usually involve a larger input filter capacitor, you'll need an external filter choke. Better use a fan motor with built-in speed control and separate pwm input that can be driven by logic level ...

  9. 3 févr. 2015 · For a maximum speed, I'm writing on sector. The problem is that the SPI doesn't reach the max speed allowed. In the data sheet the max speed is 25 Mbps, so about 3 MBps (the SD is a SDHC with a min speed of 10 MBps ). In mikroC, I set PBCLK=SYSCLK, and divider=8, where SPI_clock=PBCLK/divider.

  10. 20 mai 2014 · Activity points. 73,655. If your PMOSFET can take the full 25V then a bang-bang power. MOSFET driver would give you the speed you want. But many. FETs cannot stand 25V Vgs. FET drivers for load switch applications seem like what you. want. Some new ones include charge pumps so they can.

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